In this paper the stress wave propagation in a polycarbonate beam under impact loading is studied.
本文就集中冲击力作用下的聚碳酸酯简支梁模型，研究了梁内的应力波传播问题。
The analysis has been carried out through with one dimension and three dimension stress wave propagation theories.
用一维和三维应力波传播理论进行了分析。
The problem of checking on the quality of pile foundations is studied by using the theory of stress wave propagation.
利用应力波传播理论探讨了桩基质量检测问题。
That the complex stress state change is aroused between armor plates under explosive or shock force is expressed by complex stress wave propagation.
在爆炸或冲击荷载作用下，钢板间会引起复杂的应力应变状态的变化，表现在应力波传播比较复杂。
Then, a approximate method for characteristic analysis is presented, which will pave the way for solving the stress wave propagation problems in anisotropic solid.
提出了一个简化特征分析的方法，这种方法将成为应用特征线法求解各类各向异性应力波问题的一个突破口。
On the basis of detecting impact load, studies are carried on regulation of stress wave propagation in one-dimensional rock mass by experimental and numerical simulation.
在测定撞击载荷形式的基础上，通过试验研究应力波在一维节理岩体中的传播规律。
Model parameters have the important effects on three-dimensional distinct element code (3dec) modeling of the stress wave propagation and attenuation in jointed rock masses as well as other codes.
与其他数值软件一样，用三维离散元程序(3dec)模拟应力波在节理岩体中的传播和衰减时，模型参数对模拟结果有很重要的影响。
In calculation, adopted load-unload criterion of stress wave propagation was to decide load-unload state of element and to adjusts and transfers internal stress for tensile failure element as well.
计算中用应力波传播的加卸载判别准则来决定单元的加卸载状态，对受拉破坏单元进行内部应力调整和应力转移。
Therefore the study of interaction of stress waves with cracks will greatly contribute to the interpretation of blasting mechanism, the stress wave propagation and the dynamic behaviour of material.
因此，研究应力波与裂隙的相互作用，对于研究岩石爆破机理、应力波传播规律以及波的反演——材料的动态特性等有着十分重要的意义。
Stress wave propagation equations that incident wave and reflection wave are condition vectors are derived from three discrete forms as well as the characteristic matrix of the force and the velocity.
推导了以顺波、逆波为状态向量的应力波传播方程和杆形部件的作用力、速度传播的特征矩阵；
The law of least resistance or shortest path of spread of stress wave as well as general propagation model of stress wave are given.
提出了前兆应力波扩展与传播的最小阻力或最短波径定律以及地应力波传播的概略模型。
The equation of lateral disturbance is used to analys the problem. The effects on the propagation and reflection of stress wave are taken into account.
用幂级数解法，理论上给出了该问题的级数解，同时考虑了应力波传播及反射对屈曲的影响。
Compressive faults occurred after principal earthquake with slow variation in propagation and release of stress wave, this might lead to higher after shock intensity and longer duration.
挤压型逆冲断层地震在主震之后，应力传播和释放过程比较缓慢，可能导致余震强度较大，持续时间较长。
The propagation of laser-induced stress wave is also further investigated, and the influences of film thickness on spall thickness as well as the time when spallation begins are predicted.
探讨了激光诱导压力波的传播规律，预测了不同靶厚下的层裂厚度及其对层裂开始时间的影响。
The initially existing damage has apparently affected on wave stress propagation and stress distribution as long as its quantity exceeds a threshold value.
当初始损伤超过某临界值后会显著地影响应力波的波动范围和围岩应力分布；
Stress. wave propagation in stepped shafts under impact by dynamic photoelasticity was studied.
本文用动光弹方法研究了受冲击载荷的阶梯轴中的应力波的传播。
Then, the propagation of one-dimensional strain wave caused by the plate impact is investigated, and the attenuation of stress wave is evaluated.
然后研究了在平板撞击下的一维应变波的传播和衰减特性。
The propagation of the blasting stress wave in concrete was studied.
研究了爆炸应力波在混凝土介质中的传播规律。
The theory about stress wave and its propagation is employed to analyze the effect of dynamic unloading during excavation of jointed rock mass slope under high geostress.
利用应力波理论分析高地应力条件下节理岩体边坡开挖过程中的动态卸荷效应，探讨卸荷松动后节理岩体渗透特性的变化规律。
The plane-section assumption was not congruous in low strain dynamic tests on pipe piles, so the propagation of stress wave couldn't be expressed by 1D wave equation.
管桩低应变检测时，平截面假定并不满足，应力波的传播不能简单地用一维波动方程描述。
The propagation of blast wave through the linear explosive charge is an important factor which influences the characteristics of the blast stress field induced by the linear explosive charge.
爆轰波沿装药轴线方向的传播是影响条形药包爆炸应力场特征的重要因素。
The stress-wave propagation in a pile is mainly studied.
论文主要研究了低应变测桩时应力波在桩中的传播规律。
The results show that the average velocity of the shock wave attenuation in magnesium alloy is in good agreement with the propagation velocity of stress longitudinal wave;
研究结果表明：冲击波在镁合金中的平均传播速度与应力波中纵波的传播速度基本一致；
The results show that the average velocity of the shock wave attenuation in magnesium alloy is in good agreement with the propagation velocity of stress longitudinal wave;
研究结果表明：冲击波在镁合金中的平均传播速度与应力波中纵波的传播速度基本一致；
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